What is the purpose of agitation of foam concentrate in storage?

• A. To prevent settling and ensure uniform concentration and performance.
• B. To color-code concentrate.
• C. To prevent corrosion of storage tanks.
• D. To accelerate deterioration of concentrate.

Answer: (A)

Keeping foam concentrate homogeneous in storage is essential. Foam concentrates can separate or settle over time because of differences in components and densities. If the mixture isn’t agitated, the concentrate may stratify, leading to an uneven composition and unpredictable foam performance when it’s deployed. Agitation re-suspends any settled material and redistributes the components so the concentrate remains uniform, ensuring the intended foam expansion, stability, and drainage characteristics during actual use. This purpose is about maintaining consistent performance, not about color coding, corrosion prevention, or accelerating deterioration.